Several independent mass estimates, obtained by different methods, suggest that an adult Albertosaurus weighed between 1. 3 tonnes ( 1. 4 short tons ) and 1. 7 tonnes ( 1. 9 tons ).

Several proteins are involved, but two main methods of regulation have been identified: targeting mitochondria functionality, or directly transducing the signal via adaptor proteins to the apoptotic mechanisms.

* Several computer operating systems have various methods of running software originally designed for older versions or other OSs:

Several methods exist to compute the value of without actually expanding a binomial power or counting k-combinations.

Several of these methods may be directly extended to give definitions of e < sup > z </ sup > for complex values of z simply by substituting z in place of x and using the complex algebraic operations.

Several methods of calculation have been proposed, and although there may be small differences in the numerical values of the electronegativity, all methods show the same periodic trends between elements.

Several methods of loading are available, including pellet loading, cast loading, and press loading, the choice being determined by the characteristics of the explosive.

Several cooking methods used to soften often tough cuts have evolved into national specialties, including Sauerbraten ( sour roast ), involving marinating beef or venison in a vinegar or wine vinegar mixture over several days.

Several methods exist to dispel the curse, depending on the actor.

Several methods exist for disseminating nerve agents on the battlefield.

Several detailed studies using various methods to measure growth curves among known specimens have demonstrated that there is actually only one valid Pterodactylus species, P. antiquus.

Several methods to protect user's privacy when using location based services have been proposed, including the use of anonymizing servers, blurring of information e. a.

Several methods exist to aid the design of real-time systems, an example of which is MASCOT, an old but very successful method which represents the concurrent structure of the system.

Several methods of RNA splicing occur in nature ; the type of splicing depends on the structure of the spliced intron and the catalysts required for splicing to occur.

Several potential methods of altering the climate of Mars may fall within humanity's technological capabilities, but at present the economic resources required to do so are far beyond that which any government or society is willing to allocate to the purpose.

) Several types of naval " torpedo " were developed and deployed, most often by the Confederates, who faced a severe disadvantage in more traditional warfare methods.

Several of the trials were intended to established tactical methods of using submarines in warfare.

Several methods for heating an exhaust fluid using the gamma rays produced by positron annihilation have been proposed.

Several methods have been proposed to remedy this by increasing genetic diversity somehow and preventing early convergence, either by increasing the probability of mutation when the solution quality drops ( called triggered hypermutation ), or by occasionally introducing entirely new, randomly generated elements into the gene pool ( called random immigrants ).

Several but not all methods of altitude classification treat clouds with significant vertical extent as a separate family.

Several clinical trials have already reported positive results using rAAV to treat Leber's Congenital Amaurosis, showing that the therapy was both safe and effective There were no serious adverse events, and patients in all three studies showed improvement in their visual function as measured by a number of methods.

Several methods of Bayesian estimation select measurements of central tendency from the posterior distribution.

Several methods that can reduce the exposure to ionizing radiation during a CT scan exist.

Several geostatistical methods provide ways of relaxing this stationarity assumption.

Several firms are merchandising enzyme preparation through feed manufacturers.

Several instances of popular etymology are attested from ancient authors.

Several fully worked numerical examples are available.

Several unusual applications, such as a nuclear battery or fuel for space ships with nuclear propulsion, have been proposed for the isotope < sup > 242m </ sup > Am, but they are as yet hindered by the scarcity and high price of this nuclear isomer.

Several other oxidation states are known, which range from + 2 to + 7 and can be identified by their characteristic optical absorption spectra.

Several genera are popular with the horticultural community, including marigold, pot marigold ( also known as calendula ), cone flowers, various daisies, fleabane, chrysanthemums, dahlias, zinnias, and heleniums.

Several major cities exist either in the Andes or in the foothills, among which are Bogotá, Medellín and Cali, Colombia ; Quito, Ecuador ; Mérida, Venezuela ; La Paz, Bolivia ; Santiago, Chile, and Cusco, Peru.

Several species are raised for amaranth " grain " in Asia and the Americas.

Several cultivars are known, such as ' Albus ' ( with white flowers ), ' Sapphire ' ( dark blue flowers ), ' Aureus ' ( leaves striped with yellow ), and ' Variegatus ' ( leaves almost entirely white with a few green bands ).

Several organizations concerned with antimicrobial resistance are lobbying to eliminate the unnecessary use of antibacterials.

Several new features, including better scalability, enhanced clustering and management capabilities are mentioned.

Several manufacturers produce specialised acoustic guitar amplifiers, which are designed to give undistorted and full-range reproduction.

Combinations of the above techniques produce a " hybrid " or " hyphenated " technique .< ref name =" pmid9008869 "> Several examples are in popular use today and new hybrid techniques are under development.

Several anthems are included in the British coronation service.

Several crystal structures are known for AC-II enzymes.

Several other incidents connected with the story of Aeacus are mentioned by Ovid.

Several of its later bishops are known: Marinus in 325 ; Niconius in 344 ; Sylvanus at the beginning of the 5th century ; Pionius in 451 ; Leo in 787 ; Peter, friend of the Patriarch Ignatius, and adversary to Michael, in the ninth century.

Several roller coasters are specifically known by this name, including ;

Several crashed airplanes and large equipment such as bulldozers are scattered around the island.

Several topics that might be covered here are instead covered there because much more can be said about them in a human context.

Several areas at the edge of the neocortex, including the hippocampus and amygdala, are also much more extensively developed in mammals than in other vertebrates.

Several of the heavier bromine isotopes from fission are delayed neutron emitters.

Several English scholars and churchmen are described by Bede as being fluent in Greek due to being taught by him.